IMPLEMENTATION OF DOA-ESTIMATOR BASED ON PHASE MODE EXCITED UNIFORM  CIRCULAR ARRAY

Obeed Aftan, Ahmed

	IMPLEMENTATION OF DOA-ESTIMATOR BASED ON PHASE MODE EXCITED UNIFORM CIRCULAR ARRAY
AL-TAQANI
Article 1, Volume 23, Issue 4, 2010, Pages 88-101
Author
Ahmed obeed aftan
Abstract
In this paper the problems are presented and discussed in a comparative work and computer simulation test to study the performance of the two Eigenstracture algorithms, also this work presents the implementation of these algorithms to estimate the direction-of-arrival of the received signal relative to the uniform circular array. The received signals are processed digitally using modern super resolution techniques like “Adaptive signal parameter estimation and classification technique” and “Multiple signal classification”, and show the better work of the one of direction of arrival-Estimators in the worst conditions. The problem of high frequency direction finding to resolve the multicomponent wavefeilds are generally compounded by signal coherence, bearing separation and the effects of noise and interference of other transmitted signals This work introduces a theoretical research that is related to estimate the direction-of-arrival of HF surface wave impinging on uniform circular array with number of identical antennas uniformly distributed around a circle is considered, a phase mode excitation function with the uniform circular array is employed. The phase mode excitation in conjunction with subspace technique gives super resolution DOA estimation; also present the major advantages of uniform circular array arrangements over the uniform linear array arrangements.

Statistics Article View: 13 PDF Download: 2